Boring or penetrating the earth – With signaling – indicating – testing or measuring
Reexamination Certificate
2005-09-13
2005-09-13
Tsay, Frank (Department: 3672)
Boring or penetrating the earth
With signaling, indicating, testing or measuring
C175S045000, C367S033000
Reexamination Certificate
active
06942043
ABSTRACT:
A modular system for packaging of sensors and related electronics for an MWD system. A drill collar housing is provided with one or more cavities for receiving sensor modules that are adapted to sense one or more wellbore conditions. The sensor modules are removable and replaceable so that a desired sensor package may be installed within the drill collar housing. The drill collar housing is installed within the drill string, and a desired sensor module or modules are secured within the cavity(ies) of the drill collar housing. Replacement or repair of the sensor portions requires only that the module or modules be removed from the cavity(ies). The drill collar housing need not be removed from the drill string. The replaceable sensor modules may be interchangeably used in drill collar housings of different sizes without resulting in a degradation of sensed information.
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Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
Tsay Frank
LandOfFree
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